package com.zhouxiaoge.回调;

/**
 * @author 周明阳
 * mail:gqzmy@outlook.com
 * 时间:2018-05-02 10:02
 */

public class CallbackTest {
    public static void main(String[] args) {
        Student student = new Tom();
        Teacher teacher = new Teacher(student);
        teacher.askQuestion();
    }
}
